I really dont know anyone that I could consider "great" in our time. What made Dr. Martin Luther King, Jr. great was the fact that he had his hierarchy of needs backwards to most everyone else. IE, if he and another man were starving and MLK had a loaf of bread, he would have to give it to the other starving man before he cold eat it himself. Putting others before you makes you great. Not being able to give a great speach. That just makes you full of shit.